Translating Words into Equations
The sum of an number n and 7 is 15
n + 7 = 15
p + 10 = 38 ; p = 18
18 + 10 = 38
28 = 38
NO
26 = 11 + x
15 = x
e = 20k
Independent k
Dependent e
A number y decreased by 4 is 3
y - 4 = 3
35 = 7n ; n = 5
35 = 7(5)
35=35
Yes
p + 10 = 38
p = 28
c = 10p
independent p
dependent c
The Quotient of a number g and 5 is 30
q / 4 = 12
y = 5x + 8 ; (2, 18)
18 = 5(2) + 8
18 = 10 + 8
18 = 18
Yes
2x = 20
x = 10
e = 37z
Independent z
Dependent e
2 1/2 is the same number as the sum of a number w and 1/2
2 1/2 = w + 1/2
y = 20 + 2x ; (15, 30)
30 = 20 + 2(15)
30 = 20 + 30
30 = 50
No
t / 5 = 22
t = 110
The sum of a number z and 10 all divided by 2 is 30
z + 10
_____ = 30
2
y = 70x ; (0, 70)
70 = 70(0)
70 = 0
No
y / 10 = 26
y = 260